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The mean body mass index (BMI) in patients free of diabetes was reported as 28.2. Based...

The mean body mass index (BMI) in patients free of diabetes was reported as 28.2. Based on the data provided in Q19, an investigator wants to assess whether the true BMI mean is significantly higher than 28.2. At a 5% significant level, what is the critical value this investigator should choose for this hypothesis testing? (Round to 3 decimal places)

        

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Answer #1

At 5% significnce level the critical value is z0.025 = 1.96

                     

     

          

                                    

                                                               

                        

                                           

                         

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